1212516232 has 8 divisors (see below), whose sum is σ = 2273467950. Its totient is φ = 606258112.

The previous prime is 1212516229. The next prime is 1212516281. The reversal of 1212516232 is 2326152121.

It can be written as a sum of positive squares in only one way, i.e., 1114624996 + 97891236 = 33386^2 + 9894^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1212516232² = 2940391225726955648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1212516197 and 1212516206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75782257 + ... + 75782272.

Almost surely, 2^1212516232 is an apocalyptic number.

It is an amenable number.

1212516232 is a deficient number, since it is larger than the sum of its proper divisors (1060951718).

1212516232 is a wasteful number, since it uses less digits than its factorization.

1212516232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151564535 (or 151564531 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1212516232 is about 34821.2037701169. The cubic root of 1212516232 is about 1066.3403761536.

Adding to 1212516232 its reverse (2326152121), we get a palindrome (3538668353).

The spelling of 1212516232 in words is "one billion, two hundred twelve million, five hundred sixteen thousand, two hundred thirty-two".